ica_x25519_key_get

Purpose

Obtain the private and public key values from a given X25519 context.

Format


int ica_x25519_key_get(ICA_X25519_CTX *ctx, 
  unsigned char priv[32],
  unsigned char pub[32]);

Required hardware support

The processor must have the MSA9 facility (STFLE bit 155) installed which is available starting with IBM z15® systems.

Parameters

ICA_X25519_CTX *ctx: Pointer to an X25519 context.
const unsigned char priv[32]: Buffer receiving the private key of an X25519 context.
const unsigned char pub[32]: Buffer receiving the public key of an X25519 context.

Return codes

0: Success
-1: If at least one invalid parameter is given, or if MSA9 is not available, or an internal error occurred when deriving the public from the private key.

For return codes indicating exceptions, see Return codes.